ProMinent DULCOTEST DT1B Operating Manual page 45

Confirmation of the zero cor‐
rection
[CAL] .
with
7. Remove the cuvette from the
sample chamber and empty the
cuvette completely
8. Thoroughly clean the cuvette
and the cuvette lid
9. Fill the cuvette up to the 10-ml
marking with a standard solution
of known concentration and
introduce the reagents as
described under
with liquid reagents 0.01 ... 4.0
mg/l" on page 22 or Ä „a) Free
chlorine" on page 32
10. Use the cuvette lid to seal the
cuvette
11. Position the cuvette in the
sample chamber
ð Observe the correct posi‐
tioning of the cuvette.
[ZERO/TEST]
12. Press
[METHOD] flashes for
ð
approximately 3 seconds.
Confirmation of the result
alternates with
13. If the result matches the value
of the standard used, (within the
tolerance to be considered) you
can exit Adjustment mode by
[ON/OFF]
pressing
[0.0.0] alternates
Ä „Chlorine
[CAL] .
Changing the displayed value:
Pressing the [MODE] key 1 x
increases the displayed result
by 1 digit.
Pressing the [ZERO/TEST] key
1 x reduces the displayed result
by 1 digit.
1. Repeatedly press the keys until
the displayed result matches the
value of the standard used
[ON/OFF]
2. Press
ð The new correction factor is
calculated and saved in the
user adjustment level.
Confirmation of the adjust‐
ment appears in the display
for 3 seconds.
Calibration
45